3) Humans are a member of which kingdom?
a. Protists
b. Fungi
c. Plants
d. Animals

Animals

Explanation:

Explanation:

Animals are a member of kingdom. Animals all living things alive are animals except for plants and microorganisms.

Protists is a free-living or colonial organisms with diverse nutritional and reproductive modes.

Fungi is the taxonomic kingdom of lower plants.

Plants is a factory that produces power or where industrial items are made. A living thing with roots and usually a stem and leaves, growing above and below the ground. Place a plant or the seed of a plant into the ground so that it will grow.

Therefore, the final answer is d. Animals.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!